/*
 * lituSolar - CSS Global Rediseñado
 * Estética MODERNA, LIMPIA y PREMIUM.
 * Basado en la paleta del logo:
 * - Verde Aceto: #34C152
 * - Naranja Aceto: #F38120
 * - Base Limpia: #FFFFFF / #F9FAFB (Gris súper claro)
 * - Texto Principal: #111827 (Gris muy oscuro, casi negro)
 * - Texto Secundario: #6B7280 (Gris medio)
 */

/* --- IMPORTACIÓN DE FUENTES MODERNAS (Google Fonts) --- */
@import url('https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600&family=Poppins:wght@600;700&display=swap');

/* --- RESET Y ESTILOS GLOBALES --- */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: 'Inter', sans-serif; /* Fuente del cuerpo */
}

body {
    line-height: 1.7; /* Mayor interlineado para legibilidad */
    color: #111827;
    background-color: #ffffff;
    overflow-x: hidden;
    scroll-behavior: smooth;
}

h1, h2, h3 {
    font-family: 'Poppins', sans-serif; /* Fuente geométrica para títulos */
    font-weight: 700;
    color: #111827;
    margin-bottom: 1rem;
}

a {
    text-decoration: none;
    color: inherit;
    transition: all 0.3s ease;
}

ul {
    list-style: none;
}

img {
    max-width: 100%;
    height: auto;
    display: block;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 30px; /* Mayor padding lateral */
}

/* --- COLORES DEL LOGO Y ACENTOS --- */
.text-green { color: #34C152; }
.text-orange { color: #F38120; }
.bg-light { background-color: #F9FAFB; } /* Fondo gris ultra-claro */
.text-gray { color: #6B7280; }

/* --- BOTONES MODERNOS --- */
.btn {
    display: inline-block;
    padding: 14px 28px;
    border-radius: 8px; /* Bordes suaves */
    border: none;
    cursor: pointer;
    font-weight: 600;
    text-align: center;
    transition: all 0.3s ease;
    box-shadow: 0 4px 10px rgba(0, 0, 0, 0.05); /* Sombra muy sutil */
    text-transform: uppercase;
    letter-spacing: 0.5px;
    font-size: 0.9rem;
}

.btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 15px rgba(0, 0, 0, 0.1);
}

.btn-primary {
    background-color: #F38120; /* Naranja del sol */
    color: #ffffff;
}

.btn-primary:hover {
    background-color: #e07010;
}

.btn-secondary {
    background-color: #34C152; /* Verde de la hoja */
    color: #ffffff;
}

.btn-secondary:hover {
    background-color: #2b9e42;
}

.btn-block {
    width: 100%;
    display: block;
}

/* --- HEADER / NAVEGACIÓN MODERNA --- */
header {
    background-color: rgba(255, 255, 255, 0.95); /* Semi-transparente */
    backdrop-filter: blur(5px); /* Efecto blur detrás */
    padding: 15px 0;
    position: fixed; /* Fijo arriba siempre */
    top: 0;
    width: 100%;
    z-index: 1000;
    box-shadow: 0 1px 3px rgba(0,0,0,0.03); /* Límite suave */
}

.nav-container {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo img {
    height: 55px; /* Logo más grande */
    width: auto;
}

.nav-links {
    display: flex;
    gap: 30px; /* Más espacio entre enlaces */
}

.nav-links a {
    font-weight: 500;
    color: #111827;
    position: relative;
    padding-bottom: 5px;
}

/* Efecto hover subrayado animado */
.nav-links a::after {
    content: '';
    position: absolute;
    width: 0;
    height: 2px;
    bottom: 0;
    left: 0;
    background-color: #34C152; /* Verde de la hoja */
    transition: width 0.3s;
}

.nav-links a:hover::after, .nav-links a.active::after {
    width: 100%;
}

.nav-links a.active {
    color: #34C152;
}

.menu-toggle {
    display: none;
    font-size: 1.8rem;
    cursor: pointer;
    color: #111827;
}

/* --- SECCIÓN HERO PULIDA --- */
#hero {
    background-color: #ffffff;
    padding: 180px 0 100px 0; /* Mayor espacio arriba para header fijo */
}

.hero-container {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
}

.hero-text h1 {
    font-size: 3.5rem; /* Título gigante */
    line-height: 1.2;
    margin-bottom: 1.5rem;
}

.hero-text p {
    font-size: 1.25rem;
    color: #6B7280;
    margin-bottom: 2.5rem;
    max-width: 600px;
}

.hero-image {
    padding: 20px;
    border-radius: 16px;
    background-color: #F9FAFB;
    box-shadow: 0 20px 50px rgba(0,0,0,0.05);
}

/* --- SECCIÓN BENEFICIOS REDISEÑADA --- */
#beneficios {
    padding: 100px 0;
}

#beneficios h2 {
    text-align: center;
    font-size: 2.5rem;
    margin-bottom: 60px;
}

.beneficios-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
}

.beneficio-card {
    background: #ffffff;
    border-radius: 12px;
    padding: 40px;
    text-align: center;
    border: 1px solid rgba(0,0,0,0.03); /* Límite suave */
    transition: all 0.3s ease;
}

.beneficio-card:hover {
    transform: translateY(-8px);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.08);
}

.beneficio-card i {
    font-size: 3rem;
    margin-bottom: 25px;
    background-color: #F9FAFB;
    width: 80px;
    height: 80px;
    display: inline-flex;
    justify-content: center;
    align-items: center;
    border-radius: 50%;
}

.beneficio-card h3 {
    font-size: 1.5rem;
    margin-bottom: 15px;
}

.beneficio-card p {
    color: #6B7280;
    font-size: 1rem;
}

/* --- SECCIÓN SERVICIOS LIMPIA --- */
#servicios {
    padding: 100px 0;
}

.services-container {
    text-align: center;
}

.services-container h2 {
    font-size: 2.5rem;
    margin-bottom: 60px;
}

.services-list {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
}

.service-item {
    background: #ffffff;
    border-radius: 12px;
    padding: 40px;
    text-align: center;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.05); /* Sombra sutil */
    border: 1px solid rgba(0,0,0,0.02);
}

.service-item h3 {
    color: #F38120; /* Naranja del sol */
    font-size: 1.6rem;
    margin-bottom: 15px;
}

.service-item p {
    color: #6B7280;
}

/* --- PÁGINAS INTERNAS --- */
.page-content {
    padding: 180px 0 100px 0;
}

.page-content h1 {
    font-size: 3rem;
    margin-bottom: 40px;
    text-align: center;
}

/* Estilos genéricos para secciones de contenido */
.card-style {
    background: #ffffff;
    border-radius: 12px;
    padding: 40px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.05);
    border: 1px solid rgba(0,0,0,0.03);
    margin-bottom: 40px;
}

.error-text, .error-msg {
    color: #dc2626; /* Rojo de error moderno */
    font-size: 0.9rem;
    margin-top: 5px;
}

/* --- FORMULARIOS MODERNOS (contacto.html) --- */
.contacto-wrapper {
    max-width: 700px;
    margin: 0 auto;
}

.alert-success {
    background-color: #d1fae5;
    color: #065f46;
    padding: 15px;
    border-radius: 8px;
    border: 1px solid #a7f3d0;
    margin-bottom: 25px;
    display: none; /* Oculto por defecto */
}

.alert-success.active {
    display: block;
}

.form-group {
    margin-bottom: 20px;
}

.form-group label {
    display: block;
    margin-bottom: 8px;
    font-weight: 500;
    color: #111827;
}

.form-group input, .form-group textarea {
    width: 100%;
    padding: 14px;
    border: 1px solid #d1d5db; /* Gris suave */
    border-radius: 8px;
    background-color: #ffffff;
    font-size: 1rem;
    color: #111827;
    transition: border-color 0.3s;
}

.form-group input:focus, .form-group textarea:focus {
    outline: none;
    border-color: #34C152; /* Foco Verde */
    box-shadow: 0 0 0 3px rgba(52, 193, 82, 0.1);
}

/* --- GRILLAS DE DATOS DINÁMICOS (catalogo/blog.html) --- */
.product-grid, .blog-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
    margin-top: 50px;
}

.product-card, .blog-card {
    /* Mismo estilo base que la tarjeta de beneficios */
    background: #ffffff;
    border-radius: 12px;
    padding: 30px;
    border: 1px solid rgba(0,0,0,0.03);
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.05);
    transition: all 0.3s ease;
    display: flex;
    flex-direction: column;
}

.product-card img, .blog-card img {
    border-radius: 8px;
    margin-bottom: 20px;
}

.blog-card h3 {
    font-size: 1.4rem;
}

.blog-card .read-more {
    margin-top: auto;
    font-weight: 600;
}

/* --- FOOTER MODERNO Y LIMPIO --- */
footer {
    background-color: #111827; /* Fondo muy oscuro */
    color: #f3f4f6;
    padding: 80px 0 40px 0;
}

.footer-container {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1fr;
    gap: 50px;
}

.footer-section h3 {
    color: #F38120; /* Naranja del sol */
    font-size: 1.4rem;
    margin-bottom: 20px;
}

.footer-section p {
    color: #9ca3af; /* Gris claro */
    margin-bottom: 10px;
}

.footer-section ul li {
    margin-bottom: 12px;
}

.footer-section ul li a:hover {
    color: #34C152; /* Verde en hover */
}

.social-links a {
    margin-right: 20px;
    font-size: 1.4rem;
    color: #9ca3af;
}

.social-links a:hover {
    color: #ffffff;
}

.copy-text {
    text-align: center;
    margin-top: 50px;
    padding-top: 30px;
    border-top: 1px solid rgba(255, 255, 255, 0.05);
    color: #6b7280;
    font-size: 0.9rem;
}

/* --- BOTÓN WHATSAPP FLOTANTE PULIDO --- */
.whatsapp-btn {
    position: fixed;
    bottom: 30px;
    right: 30px;
    background-color: #25D366;
    color: #ffffff;
    border-radius: 50px;
    width: 65px;
    height: 65px;
    display: flex;
    justify-content: center;
    align-items: center;
    font-size: 2.2rem;
    box-shadow: 0 10px 25px rgba(0, 0, 0, 0.2);
    z-index: 1000;
}

.whatsapp-btn:hover {
    transform: translateY(-5px);
    background-color: #1ebd5a;
}

/* --- MEDIA QUERIES (Responsividad Rediseñada) --- */
@media (max-width: 1024px) {
    .beneficios-grid, .services-list, .product-grid, .blog-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 768px) {
    .container {
        padding: 0 20px;
    }

    /* Navegación Mobile */
    .nav-links {
        display: none;
        flex-direction: column;
        position: absolute;
        top: 85px; /* Altura del header */
        right: 0;
        background-color: #ffffff;
        width: 100%;
        padding: 30px;
        box-shadow: 0 10px 15px rgba(0,0,0,0.05);
        gap: 20px;
    }

    .nav-links.active {
        display: flex;
    }

    .menu-toggle {
        display: block;
    }

    /* Hero en columna */
    .hero-container {
        grid-template-columns: 1fr;
        text-align: center;
    }

    .hero-text h1 {
        font-size: 2.8rem;
    }

    .hero-text p {
        max-width: 100%;
    }

    /* Grillas a una columna */
    .beneficios-grid, .services-list, .product-grid, .blog-grid {
        grid-template-columns: 1fr;
    }

    /* Footer en columna */
    .footer-container {
        grid-template-columns: 1fr;
        text-align: center;
    }

    .social-links a {
        margin: 0 10px;
    }
}